OEM Carrier Flame Sensor (48GS400192) for Model PY3PNA060090AA

This is the genuine OEM factory-specified flame sensor (part #48GS400192) for the Carrier PY3PNA060090AA gas furnace. The flame sensor is a critical safety component — a ceramic-insulated metal rod that uses ionization/rectification to confirm a live burner flame during each heating cycle. When the sensor fails or becomes coated with oxidation, the furnace control board cannot verify ignition and will shut down the gas valve within 5–8 seconds of startup, triggering a safety lockout. The result: repeated ignition attempts with no sustained heat, often cycling 3 times before locking out entirely.

• OEM Part Number: 48GS400192 | 90-degree mounting bracket | Factory-matched rod length and connector — no modifications required
• OEM vs Generic: This is a genuine Carrier OEM part manufactured to exact factory tolerances. Aftermarket sensors can vary in rod material and coating, leading to false shutdowns or premature failure. OEM is the safest, most reliable choice for your furnace.
• Install Difficulty: 2/5 — A straightforward DIY repair. Tools needed: Phillips-head screwdriver, fine steel wool or emery cloth (to clean rod if reusing), and a multimeter for verification. Always shut off gas and 120V power at the breaker before servicing. Disconnect the single wire connector, remove one mounting screw, swap the sensor, and reconnect.
• Warranty: 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse — most orders arrive within 1–3 business days.

Compatibility: Designed for the Carrier PY3PNA060090AA gas furnace. Verify your unit's data plate and existing part number before ordering. Not sure if this is the right part? Our HVAC specialists confirm fitment before you buy — contact us before placing your order.